BMW 6 Series Gran Coupe (2018) is 112 mm (4.41 inch) longer and 32 mm (1.26 inch) wider than Opel Insignia Grand Sport (2017).
Opel Insignia Grand Sport (2017) is 63 mm (2.48 inch) higher, 536 kg (1,182 lbs) lighter and has 31 liters (1.09 ft3) bigger cargo space than BMW 6 Series Gran Coupe (2018).
Size difference at a glance
BMW 6 Series Gran Coupe (2018) is 2.3% longer than Opel Insignia Grand Sport (2017).
BMW 6 Series Gran Coupe (2018) is 1.7% wider than Opel Insignia Grand Sport (2017).
BMW 6 Series Gran Coupe (2018) is 4.3% lower than Opel Insignia Grand Sport (2017).
BMW 6 Series Gran Coupe (2018) is 39.3% heavier than Opel Insignia Grand Sport (2017).
BMW 6 Series Gran Coupe (2018) is 6.3% smaller in cargo space than Opel Insignia Grand Sport (2017).
Overall footprint
BMW 6 Series Gran Coupe (2018) has a 4% larger overall footprint (length × width).
Side-by-side size
Length
Width
Height
Weight
Cargo space
BMW 6 Series Gran Coupe (2018) Opel Insignia Grand Sport (2017)